IC2 Ordered high-distributor fluid reactor vs Mutant corner fluid reactor

I am comparing costs of 2 ways to build a fluid Reactor, up to the liquid heat exchangers. While I will show Stirling engines, there should be room when properly built to add boilers and turbines or any other heat-needing device.

Here's the "Mutant Corner" fluid reactor. The top shows the placement of Fluid ports; the bottom shows heat exchangers and distributors. Every 6 Heat Exchangers need 3 distributors and 4 ports.

(I call it the "Mutant Corner" reactor because the corners of the reactor kind of "grow outward".)

Here's the ordered high-distributor reactor. The first pic shows the side, needing 3 distributors for 12 (or more) heat exchangers. The center is the distribution, while the top and bottom exchangers are returns. The second picture shows you can stack these linearly, 3 distributors to 2 heat exchangers.

MATH:
To do 12 exchangers, (close to) the normal amount for a high-functioning liquid reactor, these are the key differences in materials. I'm ignoring the heat exchangers or other items as being equal in either case.

Mutant Corner reactor:

8 fluid ports = 80 lead - 10 lead for not-needed normal blocks = 70 lead

6 distributors ~ 190 Tin, 68 Iron, 8 copper, 12 glass (This is for 7, but it'll be proportional, I'll do the same next)

Ordered High-distributor reactor:

3 fluid ports = 30 lead
(not enough blocks replaced to reduce lead need directly)

18 distributors ~ 570 tin, 204 iron, 24 copper, 36 glass

The driver is definitely TIN. I haven't looked for reduced rates when using 1 return, then replacing 2 feeds with Weighted distributors.

I don't know the spawn rates for various items. I've been mining a 100x100 block with a miner from height 49 or so; this should give SOME idea of how hard it is to get lead vs tin.

I was nearly out of both lead and tin when I finished my reactor, perhaps 4 lead and 100 Tin total.

I currently have 57 lead and 205 tin, or about 81% of lead needed and 36% of tin needed to do this again. It is favorable to do this again with Lead.

If you factor in a second reactor housing, it is likely better to do this with Tin to help save the total 230 Lead to make a second fluid reactor. (60 for the reactor, 170 for the fluid vessel)

If comparing in terms of UU-matter, Tin ore is about 8x cheaper than Lead ore. While I may need 365 tin vs 170 Lead, I should be able to make it with 1/4 the UU-matter (if that was what I wanted to do).

I am only using IC2 and JEI, so this includes parts from no other mods. if you use other mods' parts, YMMV.

A) The planner I have looks like this, and can be obtained from this thread, at top:
[link]IC2 Experimental Reactor Planner open beta [/link]

I think it is more up to date, and gives you a radio button to use a fluid reactor mode. Otherwise, just double the heat from EU mode to get a good approximation.

b) What's a good 400-Hu reactor? this is a good 400Hu reactor. It is overbuilt slightly, but this builds directly into a 991 Hu reactor, or even the 1240 reactor.

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This is a 991 reactor.

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This is a 1280 Reactor.

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Once you get iridium (from a dungeon), this is a 1340 reactor, the highest-heat and about most efficient stable, non-external reactor you can make.

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